(19)

(11)

EP 2 776 875 A1

(12)

(43) Date of publication: 17.09.2014 Bulletin 2014/38 (21) Application number: 12848185.0 (22) Date of filing: 08.08.2012

(51) International Patent Classification (IPC):  G02B 5/02(2006.01) G02F 1/13357(2006.01) (86) International application number: PCT/KR2012/006308 (87) International publication number: WO 2013/069878 (16.05.2013 Gazette 2013/20)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR (30) Priority: 07.11.2011 KR 20110115394 (71) Applicant: LG Innotek Co., Ltd. Seoul 100-714 (KR)	(72) Inventor: LEE, Sun Hwa Seoul 100-714 (KR) (74) Representative: Novagraaf Technologies  122, rue Edouard Vaillant 92593 Levallois-Perret Cedex 92593 Levallois-Perret Cedex (FR)